Leonard Susskind is the Felix Bloch Professor in Theoretical Physics at Stanford University. He is the author of the forthcoming General Relativity: The Theoretical Minimum (with André Cabannes); Quantum Mechanics and Special Relativity and Classical Field Theory (with Art Friedman); and The Theoretical Minimum (with George Hrabovsky), among other books. He lives in Palo Alto, California.
George Hrabovsky is the president of Madison Area Science and Technology (MAST), a nonprofit organization dedicated to scientific and technological research and education. He lives in Madison, Wisconsin.